Comparison of Micro-Pressure Wave Radiated Out of Tunnel Exit between Slab Track and Ballast Track

Feng Geng; Qian Zhang

doi:10.4028/www.scientific.net/AMM.90-93.2183

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 90-93Comparison of Micro-Pressure Wave Radiated Out of...

Comparison of Micro-Pressure Wave Radiated Out of Tunnel Exit between Slab Track and Ballast Track

Abstract:

Based on the one-dimensional unsteady compressible non-isentropic flow theory, micro-pressure wave radiated out of tunnel exit generated by a high-speed train entering a tunnel was investigated. In calculation process, the track roadbed and tunnel length were considered. The results, which were qualitatively and quantitatively analyzed, show that the ballast track has reduction effect of micro-pressure wave in long tunnel.

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Periodical:

Applied Mechanics and Materials (Volumes 90-93)

Pages:

2183-2187

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.90-93.2183

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Online since:

September 2011

Authors:

Feng Geng, Qian Zhang

Keywords:

Ballast Track, High Speed Train (HST), Micro-Pressure Wave, Slab Track, Tunnel

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